Fluid-controlled flushing-valve.



PATENTED MAR. 24, 1903.

R. A. BROOKS.

FLUID CONTROLLED PLU'SHING VALVE.

APPLICATION FILED JUNE 4. 1906,

a SHEETS-311E131; 1.

1%. 882,740, PATENTED MAR. 24, 1908.

R. A. BROOKS.

FLUIDVGONTROLLED PLUSHING VALVE.

APPLICATION FILED JUNE 4. 1906.

3 SHEETS-SHEET 2.

PATENTED MAR. 24.

R. A. BROOKS.

FLUID CONTROLLED FLUSHING VALVE.

APPLICATION FILED JUNE 4. 1906.

3 SHEBTS-SBEET 3.

' 1m EEJIIlEl L IEEE ROBERT A. BROOKS.,OF CHICAGO, ILLINOIS.

I rnurn-coirrnonnnn FLUSIIING-VALVE.

Specification of Letters Patent.

Patented March 24, mos.

Application filed June 4, 1906. Serial No. 320,081.

To all whom it may concern;

Be it known that I, ROBERT A. BROOKS, a

' citizen of the United States, ands resident declare that the fol exactdescription of the same, reference 'be- '10 of the city of Chicago,infthe county of Cook and Sta-tc'of, Illinois, have'invented certain newand useful Im rovements in Fluid- Con-trolled Flushin elves; and I dohereby lowing is a full, clear, and

and

ing had tot e accompanying drawings.

t ereon,

to the letters of reference marked which form a part of thisspecification;

This invention relates to improvements in shing valves and moreparticularlyto that class of flushing valves set forth inmy'priorapplication for atent for improvements in flushing valves, October 26,1905; Serial No. 284,543.

In the older types of flushing valves the.

ressureadjustment below four or five impossible hence sue to operate at-water ounds was di cult or valves did not 0 into 2 general use. Most ofthe fiushin va ves in use would workfairly {well wit medium pressureswere it not that most valves for this purpose contain tortuous channelsand passages usuallyof very small size and therefore likely to becomeclogged 'efiicienc hereinafter destribed' and trolled and in whic orstopped up by the deposit of sediment contained. in thewater, inconsequence the of such arevery uncertain.

I The 0 ject of this invention is to afford a valve of the classdescribed wherein the full 0 ening of the valve is insured independentof the water pressure exertedagainst the same and in which the closure1s positive after a regulated flush and after fill.

It is also an object of the invention to construct the valve of few artsand to enable the parts when adjuste tobe rigidly held from unauthorizedinterference.

' It is alsoan important objectto -construct lar e orts, perfectlyconcoggin isim'possible.

Lastly it is an object of t einvention to the valve with means of afluid other than that passing through the valve'and' to so inclose andcontain said fluid as to prevent the loss 'byleakage or otherwisetherefrom inwhatever position the valve may be laced.

The invention consists in t e matters more fully pointed outand"defined: in the appended claims.

high .or"

1 closed byineans of a 'Said sleeve as shown In the drawings: Figure 1is a central vertical section of a device embodying my ingention showingthe valves full closed.

1 fu y opened and with parts shown! in elevatlon. Fig. 3 is a top planview of the valve; Fig. 4 is a section taken online 4-4 of Fig. 1. Fig.5 is a section taken on line 5-5 of Fig. 4. Fig. 6 is a reduced bottomplan View of the piston. Fig. 7 is a section taken on. line .77 of Big-1with parts removed.

As shown in the drawings: A indicates a casing which as shown iscylindric and constructed of cast metal or other suitable material andin the bottom ofwhich is connected as shown, a. vertical inlet ipe a andfrom the 'sidf) of said Casing abov t 6 center there; of opens alaterally directed outlet pl s elow -' inner sideof the flangedfand isprovided at a :sligh tydis'tanoe" from the inner periphery with adownwardly opening groove concentric' therewith as indicated by b. in anupwardl projecting concentric flange on' theupper ace ofsaid seat is asleeve B and fitted around the upper end of the same and bearing ontheupper externally threaded end of said casing is apacking washer b5 Aflanged cap-A isthreaded on the upper end of the casing A and compressessaid packing washer I) on said upper 'end of the casing and also bypressure on said sleeve B vforces said the shoulder or flange aafiording tight joints.

same is provided with relatively largehorizontally extended aperturesthrough which the water in flushing is delivered into the .ortion'of"the casing above said shoulder or 2 is a similar view showing t evalvesThreaded seat B downwardly on cylindric at the lower end of the 1 ange awhich divides said? casing into an provided with an upwardly directedinternally threaded flange a concentric therewith and in which isthreaded a cylindric shell 6r housing 0 which at its upper end is cap Cv Vertically slidable within said shell or housing is a cylindric fluidcontainin on D which as shown is provided with a close bottom d and atits topis provided with a cap at which is thread ed thereon, and whichas shown presses a suitable packing washer (Z upon the upper edge of thecup and thereby seals a joint. Said cap (1 is provided with a centralstuffing box or gland therethrough, through which extends a tubularstem, E which is internally threaded and the extremities of which areexternally threaded. The upper end of said stem E is threaded through anut e, which is loosely seated in a central aperture in the cap C, andthreaded on the upper end of said stem and serving as a jam nut for thenut e is a cap nut e which also closes the end of the stem. Fitted forsaid cup to slide relatively of the same within the cup D and secured onthe lower end of said stem E which is threaded therethrough is a pistonE. Said piston is provided with a recess therein, open at its bottom andopening therethrough at its top in a restricted port or aperture andsecured within the recess is a ball F, which serves as a closure forsaid port to prevent the oil or liquid with which the cup is filled,from flowing upwardly therethrough. Said tubular stem E at a pointslightly above the piston is provided with a ertures or portstherethrough and threads within the stem and extending downwardly topartly close said parts if desired isa threaded rod 6 which whenthreaded inwardly serves to restrict said orts o ening through the stemand when t eade upwardly therein 0 ens the same. The up or end of saidrod as shown is notched or engagement with a screw driver or othersuitable tool for adjustment. A coiled spring E is engaged around saidstem and bears upon the piston and against the ca or cover (1 for thecup and serves norma' 1y to hold the cup elevated; The cover (1 of theon is provided at one side of the center of t 1e same with an upwardlyprojecting externally threaded ')SS G and threaded thereon is the ocrating stem or rod G, which projects throng a suitable aperture in thecap C and is provided at its u )per end with a push button 9 or othersuitable actuating means. Threaded on the stem E, is an arm g which fitsclosely be neath the cover C and jams the nut e at the lower side of thesame and is forkedat its outer end and engages partly around the optheupper and larger portion comprises a piston I, fitting loosely in saidsleeve B and is provided with a central enlarged passage extendingtherethrough and through its vertically ribbed or rooved stem 2', toafford a water assage ant through which the stem H exten s. At the lowerend of said stem of the differential valve is a circular downwardlyfacin head I provided with a periph eral upward y directed flange Iwhich fits in the aperture through said seat and as shown isprovided'with a peripherally elongated but narrow aperture therethroughat one or more points and near its bottom. Below said flange said-stemis externally. threaded and the passage;therethrough is enlarged toafford a chamber and threaded on said lower end of said stem is aeripherally flanged nut i which bears a paciiing washer i upwardlyagainst said downwardly facing head I and which closes, against saidSeat B, when the valve is closed. Said nut i at its bottom is restrictedor partly closed. Through the a erture theretlirough extends a ribbedspi er h, carried on the lower end of the stem H,=and above which isrovided a notched plate :or 'c'ollariz whic is adapted to bearagainstthe inner face of said nut and forcethevalve downwardly to itsopen position. At the lower end of said stern and bearing against saidspider h, is a vent valve comprisnn a packing washer h which closesagainst th e end of said nut and is held in placeby a jam nut h securedon the lower end of said stem H.

The operation is as follows: The spring E normally holds said cupelevated with the fluid therein above the piston E and inasmuch as thestem H is rigidly connected with the bottom of the cup the valve isobviously held closed thereby. When it is desired to open the valve thecup is forced downwardly by means of-the stem G, whereby the liquid insaid on flows quickly throu h the iston downwardly and causes the baisaid piston affording a free vent through the piston and ermitting thecup to move down' ward with ut little resistance. The downward movementof the cup obviously forces 5 the vent valve it open permitting theflush:

ing fluid to fiow u Wardly through the differential valve un er inletpressure and to fill the chamber above the piston I. .This

being larger than the inlet valve 1 the valves are forced downwardlyaffording a nick o ening and the water from the inlet ows t rou h saidseat into the sleeve B. It is desira is that the passage through thedifferential valve and the stem connectin thearts thereof should berelatively iarge.

r hould the water pressure be very sli ht as in-soine situations occursgravity ai s the pressure in opening the valve and in any event shouldthere be any tendency for the as m 40 lF to all to 110' the bottom orlarger portion of the recess in the piston.

otherwise as it is valve to stick the notched collar 5 on the stem H,enga es within the nut i and the valve is force open manually.

The valve being open it is-desirable in regulating the flush to restrictthe return flow of the fluid above the piston due to the upward movementof the cup carrying the valves therewith. It is obvious that the ball F,under such upward pressure seats to close the port through said pistonso that the flow is limited entirely to that passing through the stemand possibly a slight leakage around The amount passing through thestem' is controlled by the inward or outward adjustment of the rod 6thereby var ing the delivery through the ports in sai stem above theiston and in this way enabling thereturn fl dw to be regulated for along or a short period as desired.

Obviously none of the fluid or oil within the cup D can be spilled intransportation or inclosed within the cup by its cover and obviously inconsequenct evaporation cannot cause the same to become thickenedthrough use. It follows that the valve when once assembled and adjustedis i I capable of working indefinitely ,without fur- I and third by thepositive valve h ment of said cup and stem carries the valve otf whenthe therattention.

It'is evident that the valve must open and close entirel independent ofthe pressure same is insured. First, by t e di erential action ofthe'inlet pressure upon the piston I and the inlet valve I. Second bygravity as "the valve of necessity opens downward downward movement ofthe stem therethrough which forces the valve open should the same nothave 0 ned as' the stem nears its downward limit oi movement. It isalso'evident that the valve in closing can never hammer for the reasonthat the preliminary u ward movement-of the oil cup serves to c ose thevent and the continued upward moveupwardly slowly permitting the waterabove the piston I, the arger head of said differential valve, to escapeto the outlet around said piston. the valve I approaches its seat theflange I cuts off the-major part ofthe flow and there is just sufficientpassing through the slot or aperture in said flange to afford theafterfill and this is of course cut valve seats. Ward res'sure exertedthereon by the stem Han the tendency of the upwardly flowing water tothe same is resisted still tov a certain extent -b should t ere -be anytendency whatever for said valve tolift suddenly from the vent valve,the pressure is instantl restored abovethe piston thus preventingammerin Obviously while I have descri ed a cer tain mechanicalconstructionforthe valves and the connections between the same it ismade Without varying The continued up.

the water above the piston I and evident that various detail changes maybe from the principles of this invention.

I claim as my'invention:

1-. A valve of the class described embracing a casing having an inletand an outlet pipe, a valve seat 1n the caslng, a diflerentlal closurefor said seat, a vent valve in said closure adapted to be manuallyactuated preliminary.

to flushing, adapting inlet pressure and gravity to unseat the closure,a closed fluld containmg cup regulating the closure and means rigidlyengaged to said cup and extending through the top of the casing formanual actuation.

2. A valve of the class described embracing a casing having an inlet andan outlet pipe, a seat in the casing, a diflerential closure for saidseat, a valve controlled passage in the closure adapted to admit inletpressure above the same, said closure adapted to be opened' by manualactuation and aided by gravity, inlet pressure and manually and .aclosed movable fluid containing cup regulating the closure.

3. A valve'of the class described embracing a casing having an inlet andan outlet, a valve seat in the casing, a differential closure normallyseated on said seat adapted to'be unseated by inlet pressure, ravity'andmanually prior to flushing, a c osed movable cup containing a fluid andmeans through which the fluid passes to vary the rate of closing of saiddifferential closure.-

4. A flushing valve of theclass described embracing a casing having anupwardly openi inlet and laterally opening outlet'pipe, an iiil bt valveclosing with the pressure to close the inlet i e, a vent valvecontrolling the same, a w 0 ly closed fluid containing vessel,

a piston therein, one of the same movable relativeto the other, a stemconnecting said movable element to open the vent valve and means foractuating said-movable element.

5. A flushing valve of the class described comprising a casing having aninletand an outlet, a valve seat in the casing, a closure therefor,'manually operated means adapted ,when actuated to open the closure bymanwholly-inclosed cup within the casing hav' a fluid therein, a freestem projecting thereinto, a piston'rigidly secured to the lower endof'the stem and means locking said stem and -ual actuation,gravityandinlet pressure a Y piston from rotation.

6. A flushing valve of the class described embracing a casin ,an inletpipe opening upwardly into the fiottomthereof, an outlet pipe openinglaterally therefrom, a valved partition dividing the casing belowtheoutlet, aninlet valve seated in said opening downwardly into th ventvalve carried-on said inlet valve and also opening downwardly, a pistonrigidly connected withthe inlet valve and ofgreater "12s partition and Ieinlet-pipe, a'

area-and exposed to inlet pressure from above, downwardly vhen thez'ventvalve is opened, a closed fluid contain ng-cup above the valves;- a'piston therein, means for moving onerelativelyof the other, a stemconnecting the movable element with the vent valve closure and one ormore valves con-" trolling the flow through said-piston in the cup.

7. In a valve of the class described the combination with a casing havinaninlet' and an outlet of a closure adapt'e to afford and cut oncommunication between the same,. a tightly closed movable cup in thecasing containing a fluid, a stufling box movable with the cup, a stemextending there- 3 through, means rigidly engaged to the, cup

for actuating the same, means secured to the stem in the cup dividingthe cup into chambers and adapted tocontrol the rate of flow of fluid,from 'one chamber to the other and operative connections between the cupand closure whereby the movement of the closure is regulated by themovement of the cup. 25

valve is controlled. by the relative movement of said cup and thepiston.

9. In a device of the class described'the combination with a valve of aclosed fluid containing cup, a tubular stem extending into the cuphaving an aperture through the side thereof, a valved piston secured tothe stem in the cup, a rod threaded into said stem adapted foradjustment to vary the amount of fluid admitted through the aperture inthe stem, means integral with the cup adapted for connection with anactuation handle or steni, a lock adapted to prevent said piston fromrotation and operative connections between the cup and valve.

10. In a device of the class described a movable wholly closed,regulating cup, a fluid filling ,the same, a rigidly fixed pistontherein having a regulable port therethrough, a valve in the pistonclosing against upward pressure, means for regulating said port anda-lock holding said piston from rotation.

11 In a device of the class described regulating vmeans embracing awholly closedvertically movable regulating cup, a'stufling box in thetop thereof, a tubular steni extending therethrough and into the cup ahead, a stern fitting in the cup, an adjustable rod threaded in the stemand regulating ports through the piston, means loosely supporting saidstem and holding the same from rotation and man- 7 'ually operated meansrigidlyengaged to the means rigidly engaged to t e closure to pro videan after fill.

13. In a flushomet'eri the combination with a casing of an inlet and anoutlet pipe therefor, a valve seat in said casing between said pipe, adiflerential valve closure adapted to seat thereon, means admittinginlet pressure to unseat the closure, manually actuated means adapted toengage the closure to aid inlet pressure in unseating the same a whollyclosed fluid containing cup, a piston in said cup tl u h which the fluidin the cup flows, means selling the cup and piston from rotation and anapertured flange movable with said closure adapted to extend on oppositesides of the valve seat to provide an after fill.

14. In a flushometer the combination with a casing having an inlet andan outlet pipe, a removable valve seat in said casing, a removablesleeve holding the seat in place and having a plurality of aperturestherein, a closure adapted to seat on said seat and having a passagetherethrough, a stem extending through the passage, a valve thereonnormally closing said passage, manual means for u'nseating said valveadapting inlet pressure to open the closure, means actuated by said stemadapted to manually open said closure to aid the inlet pressure andmeans automatically seating said closure.

15. In a device of the class described the combination with a casinghaving an inlet and an outlet pipe of a valve seat intermediate thesame, a differential closure-therefor, a passage therethrough admittinginlet pressure above the closure to unseat the same, a stem extendingthrough the passage, means movable with the stem adapted to force theclosure open wholly inclosed means actuated by fluid other than thevalve fluid to regulate the pdriod ol' unseating the valve closure andmeans connected to theclosure aflording an afterlill.

16. In a device of the class described the combination with a casinghaving an inlet and an outlet, a valve seat in the casing, aditlerential closure therefor, a vent valve for said closure adapted toadmit pressure to open the same, a. housing secured to the easing, awholly closed .011 therein operatively connected to control tie rate ofseating of the closure, said housing having communication with theexternal air both aboveand below the limits of movement of the cup, a

tubular stem extending into the cuphaving freely in one direction, astem threaded in the tubular stem to regulate the flow of fluid throughthe aperture therein, a spring in the cup adapted to return the same tonormal after each manual actuation and means inoutlet therefor,

tegral with the closure and movable there with to afford an afterfill.

17. In a device of the class described the combination with a casinghaving an inlet and an outlet of a valve seat in the casing, adifferential closure therefor normally seated by inlet pressure, meansadmitting inlet pressure to the larger areaiof the closure,

manual means adapted to simultaneously contact the closure thereby osuing the closure by both inlet pressure and manually, a wholly inclosedfluid containing cup, a rigid piston therein, means rigidly engaged tothe cup for manual actuation 1n starting the flush and operativeconnections between the cup and closure. 18. combination with a casingof an inlet and an a valve seat in the casing, a

closure therefor, a cup in the casing above the closure, V the samemovable relatively of the other, a 30 a piston in said cup and one ofstem engaged to the movable elementand 'rojecting through the closurehaving anenarged end adapted to engage theclosure to prove the same inone direction, manually operated means actuating the stem to force theenlarged end out of engagement with the closure and adapting the closureto be unseated by gravit means automatically seating the closureandmeans in the cup adapted to control the rate of seating' 19. In adevice of the class described the combination with a casing having aninlet and an outlet pi e, a removable valve seat intermediate sai pipes,a closure adapted to seat thereon from beneath, a stem extending throughthe closure and into the inlet pi e, adapted to contact the closure tounseat the same, a cup rigidly connected to the stem, meansautomatically raising the cup and stem to seat the closure, an openchamber around the valve closure to provide an after fill and means insaid cup through which fluid other. than inlet fluid passes to controlthe movement of the valve closure in one direction.

20. In a device of the class described the combination with a casinghaving an inlet and an outlet, a removable valve seat'therein, a sleeverigidly holding the same in place provided with a pluralit of aperturesopening-through the sides tiereof into the outlet, a differentialclosure seating on the removable seat, a passage therethrough, a

movable stem extending through saidpassaid stem to close the passage, aclosure on n a deviceof the class described the seated, manually saidautomatically acting means adapting means connected with the stem sage,means connected with the stem adapted to be manually actuated to openthe passage to admit inlet'pressure above the closure to closing thepassage adapting the closure to be seated by inlet pressure.

21. In 'a device of the class described the combination with a casing ofan inlet and an outlet pipe therefor, a removable valve seat in thecasing, removable means holding the same in lace, a valve closure forsaid seat, a chain er therein,. a stem extending through the. closureand chamber, a on said stem in the chamber adapted when the stem ismanually actuated to unseat the valve closure and a head on the end of"the stem adapted when the stem is automatically actuated same.

22. In a device ofthe class described the combination with a casing ofan inlet and an outlet pipe therefor, aremovable valve seat in thecasing, a closure therefor, a cyl- Which the upperpart of the closuremoves to engage the closure to seat the.

unseat the valve and means automatically spider inder in the casingaffording a chamber in said cylinder adapted to firmly hold the seat inplace and apertured toafford communication with the outlet; means actingautomatically'to seat said closure ind'e endently of inlet pressure andto firmly hold the same operated means actuating the closure to unseatby inlet pressure is low.

23. In a device of the class described the combination with a casing ofan inlet and an outlet pi e therefor, a valve seat intermediate saipipes, a differential closure,

gravity when the automatic means adapted to firmly seat and hold thesame seated independently of inlet pressure, manually operated meansactu ating the automatic seating means whereby gravity alone is utihzedto open the closure on low lnlet pressure, a whollyinclosed fluidcontaining cup movable above the closure, a packing box in the upperhead of the cup,

a stem extending therethrough and a. rigid piston secured thereonthrough which the fluid in the cup seating.

24. In a device of the class described the combination with a casing ofan inlet and an outlet ipe, a valve seat in said casing, a diiferentiaclosure ada ted to close the same, a closed movable flhid containing cupin the casing, a stem thereon projecting through the closure having anenlarged end adapted to contact the closure to force the same to itsseat, automatic means raising the cup to seat the closure, a stemrigidly en gaged to the cup for actuating the same, thereby forcing theenlargement on said stem out of contact with the closure adaptinggravity to unseat the. closure.

25. In a device .of the class described the passes to control the ratecombination with acasing of an inlet and an outlet plpe therefor, avalve seat 1n the easmg, a closure therefor, a stem extending throughthe closure and above and below the movablerelatively thereof, a stemenga ed to the on and projecting through and eyond the ottom of theclosure, an enlargement on said stem adapted to engage the end of theclosure when moving in one direction .to seat the same, automaticallyoperative means moving said stem in one direction, a stem rigidlyengaged to the cup and adapted for manual actuation to move theaforesaid stem in the opposite directions and fluid in.

said cup to regulate the rate of seating of the closure.

2-7. In a device of the class described the combination with a casing ofan inlet and'an' outlet pipe therefor, a valve seat intermedi-Q' ate thesame, a closure therefor, means unseating the closure by inlet pressureand gravity, means automatically seating the closing independently ofinlet pressure and fluid controlled means regulating the period ofseating. I

28. In a device of theclass described the combination with a casing ofan inlet and an outlet therefor, a valve seat in the casing, a

closure therefor having a passage therethrough, means unseatmg theclosure and seating the same, a plurality of ways depend- .ing uponinlet pressure and comprising a stem extendin through said passage, anenlargement on t e end thereof adapted to contact the bottom of thevalve when moving in one direction means on said stem adapted to*contact'th'e same when moving in an opposite direction, manuallyoperated means for operating said stem in' one direction, a springcompressed thereby adapted to return said means tonormal and regulablemeans controllingnthe closing of the inlet.

29. a device of the class described the combination with a casing havingan inlet and an outlet, a cylinder rigidly secured to the casing, a cupmovable in the cylinder having a fluid therein, a seat in the casing, achambered closurev therefor having a passage therethrough, a pistonintegral therewith, an apertured flange integral with the closureadapted to admit inlet fluid from'one. side of the seat to the otherprior to seating of the closure, a stem rigidly engaged to the cup andextending into the casing, a spider on said stem in the chamber of theclosure and an enlargement on the end of the stem adapted to close thepassage through the closure.

30. In a device of the class described the combination With a casing ofan inlet and an outlet therefor, a removable valve seat, a sleevebearing against the top of the casing and firmly securing the seat inplace and apertured to afford communication with the outlet, a closurefor said seat having its upper part extending into the sleeve above theapertured portion, a vent valve in the closure, manually operated meansfor opening the vent valve adapting inlet pressure to act on the top ofthe closure in the sleeve to unseat the closure and inlet pressureadapted to seat the closure and means acting independently of inletpressure to unseat and seat the closure.

31. In a device of the class described the combination with a casing ofan inlet and an outlet pipe therefor, a valve seat in the casing, asleeve rigidly secured thereto al fording a chamber within the casingand apertured near the lower end to afford com- .munication between thesame andoutlet, a

chambered closure adapted to seat thereon having a passage therethrough,a fluid containing cup above the closure, a stem rigidly engaged theretoprojecting through the passage in the closure and said chamber, meanssecured on the stem in the chamber adapted to contact the closure to aidin unseating the same and a valve on the stem-beneath the closure toclose the passage therethrough.

In testimony whereof I have hereunto subscribed my name in the presenceof two subscribing witnesses. 4

ROBERT A. IE5ROOIIS. Witnesses:

W. IV. WITHENBURY, WM. 0. SMITH.

